Interlock® Lifetime Aluminum Roofing in Oregon

Interlock® Metal Roofing is a lifetime aluminum roofing system made from heavy-gauge interlocking shingles or mechanical-lock panels. Each piece locks on all sides to form a sealed, wind-resistant roof. Interlock Metal Roofing (PNW) Ltd. is the exclusive installer for Oregon and the Pacific Northwest.

Interlock® shingles are made from heavy-gauge aluminum. Aluminum is non-ferrous, so it will not rust, which is ideal for Oregon rain and coastal salt air. Solid copper is also available in select profiles.

Interlock® offers Slate, Cedar Shingle, Shake, Mediterranean Tile, and Mechanical-Lock Standing Seam. You get classic architecture with lifetime aluminum protection.

Interlock® uses a true 4-way interlocking system, not simple overlap panels. This improves wind uplift resistance and blocks water back-tracking. Interlock also uses the Alunar® coating system for long-term color and UV stability.

Interlock Roofing Ltd. manufactures Interlock® systems, while Interlock Metal Roofing (PNW) Ltd. is the exclusive certified installer in Oregon. Your Oregon roof is installed by the PNW installer team.

No. Interlock® is used primarily on homes, but it also performs well on light-commercial roofs. We install Interlock on residential (~80%) and commercial (~20%) projects across Oregon.

Interlock® is engineered to last for decades and typically outlives asphalt roofs by multiple replacement cycles. The aluminum base metal won’t rot or rust in Oregon’s wet climate.

Interlock® systems include a long Lifetime Limited Warranty, often structured as a 50-year transferable warranty. It’s designed to support “Never Re-Roof Again®” ownership.

Yes. Interlock® warranties are transferable to a new homeowner, adding resale leverage and buyer confidence.

It means the roof is designed so you don’t go through 15–25-year replacement cycles. Interlock® aluminum keeps performing for decades with minimal maintenance.

No. Interlock® aluminum cannot rust because it contains no iron. This makes it ideal for Portland, the Willamette Valley, and the Oregon Coast.

Yes. Aluminum resists corrosion in salty air, and Interlock’s sealed interlocks block wind-driven rain. It’s built for coastal gusts and moisture. 

Yes. Interlock® is inorganic aluminum with a sealed coating, so moss can’t feed on or penetrate the surface like it can with asphalt or cedar.

Yes. Interlock® shingles lock on all sides, preventing water intrusion and back-tracking. This is a major advantage in Oregon’s long rainy seasons.

Yes. The 4-way interlocking system creates strong wind uplift resistance and prevents blow-offs far better than nailed shingles.

Yes. Interlock sheds snow efficiently, lowering the snow load and reducing ice-dam risk in alpine zones like Mt. Hood.

Yes. Aluminum expands/contracts without cracking, and the interlocking design stays sealed through Oregon temperature swings.

Yes. Interlock® aluminum shingles are non-combustible and can achieve a Class A fire rating when installed with an approved assembly. 

Yes. Heavy-gauge aluminum resists impacts without cracking, unlike asphalt; it remains watertight after hail.

Yes. Interlock combines rust-resistant aluminum with interlocking wind resistance, making it ideal for Oregon coastal towns.

Interlock® lasts far longer, resists moss, won’t shed granules, and stands up to Oregon weather. Asphalt costs less upfront but usually needs to be replaced every 15–25 years. Interlock is the lifetime value.

Architectural shingles look better than 3-tab but still degrade and need replacement. Interlock maintains a premium appearance for decades.

Interlock Shake adds a cedar-style look without rot, splitting, or fire risk. Cedar needs heavy upkeep in Oregon rain; Interlock doesn’t.

Interlock Slate mimics slate at a fraction of the weight and cost. Natural slate can crack and requires structural reinforcement.

Interlock Tile gives a Mediterranean look without a heavy structural load. Clay tile can break and is very heavy for seismic zones.

Interlock Tile is lighter and impact-resistant, with no cracking or mortar maintenance.

Interlock Standing Seam uses a mechanical-lock system designed for watertightness. It avoids exposed fasteners that can loosen over time.

Interlock® is superior for long-term sealing because there are no exposed screws or washers to age and leak.

Interlock aluminum is naturally rust-proof and lighter. Stone-coated steel relies on coatings for corrosion protection.

Interlock stays stable far longer, is fully recyclable, and offers higher fire safety than most composites.

Many “metal roofs” overlap panels. Interlock® is a true interlocking system with architectural profiles, aluminum base metal, and certified installation.

Interlock Metal Roofing (PNW) Ltd. is the exclusive certified Interlock installer for Oregon and the Pacific Northwest.

Often, yes, if there is one sound layer and the decking is healthy. Roof-overs save the tear-off cost and reduce landfill waste.

If the roof has multiple layers, soft decking, rot, or structural issues, we recommend a tear-off for performance and warranty.

Yes. Interlock shingles are engineered for standard and steep residential pitches across Oregon.

Interlock® roofing requires a minimum 3/12 roof slope for all profiles to ensure proper water shedding and warranty-compliant performance. If your roof is below 3/12, we’ll review options such as slope modification or alternative Interlock®-approved solutions during your inspection.

Interlock uses high-performance underlayments that improve waterproofing and fire rating for Oregon conditions.

Yes, but scheduling depends on safe dry windows. We plan installs around Oregon rain cycles for the best results.

Most residential Interlock roofs take a few days, depending on roof size and complexity.

No. Certified crews must install the Interlock Lifetime Roofing System to maintain the Lifetime warranty and system integrity.

No. Interlock installs over solid decking with underlayment, and attic insulation absorbs sound.

Yes, carefully and only when dry. Interlock shingles are strong enough for maintenance access.

Interlock has textured profiles, but any roof can be slippery when wet. Safety practices always apply.

Interlock aluminum is impact-resistant and won’t crack like asphalt. Heavy impacts may dent but usually don’t compromise waterproofing.

Yes. Interlock Alunar® coating reflects UV and solar heat, improving comfort and reducing summer attic heat.

Yes. A tight Interlock system reduces air/water intrusion, supporting stable indoor temperatures during Oregon winters.

Yes. Interlock systems are solar-compatible with approved mounts that preserve water tightness.

Yes. Aluminum is recyclable, and Interlock’s long lifespan reduces landfill waste from repeated re-roofing.

Yes. Interlock costs more initially than asphalt, but the lifetime cost is usually lower due to avoided replacements.

Often yes. Buyers value transferable lifetime roofs and premium curb appeal.

Many insurers offer discounts for Class A fire systems and impact resistance. Discounts vary by carrier and Oregon market.

Often yes. Transferable warranty + premium look can be a major selling advantage.

Very little. Basic gutter cleaning and occasional roof checks are enough for most Oregon homes.

Interlock’s Alunar® Coating System is designed for long color stability and UV resistance.

Low-pressure cleaning is fine when needed. Aggressive pressure washing is unnecessary for most owners.

Yes. The interlocking edges form a continuous barrier that resists wind-driven rain and back-tracking.

Slate fits classic and upscale homes, Cedar Shingle suits craftsman styles, Shake works for rustic cabins, Tile fits Mediterranean designs, and Standing Seam matches modern architecture.

Yes. Interlock offers multiple profiles and colors that blend with Oregon architectural styles.

Yes. Interlock gives high-end texture and shadow-line depth, keeping a premium look for decades.

Yes. Interlock profiles, especially Standing Seam, work well on light-commercial, churches, and institutional roofs where longevity matters.